16. Kev txwv tsis pub tuav daim iav thiab lub lens ntawm cov khoom siv laser?

Cov kev ua hauv qab no yuav tsum zam:

(1) Kov lub lens ntawm tes.

(2) Tshuab nrog koj lub qhov ncauj lossis lub twj tso kua mis.

(3) Ncaj nraim kov cov khoom tawv.

(4) So los ntawm daim ntawv tsis tsim nyog lossis so rudely.

(5) Nias nyuaj thaum uninstalling.

(6) Tsis siv cov tshuaj ntxuav tshwj xeeb los ntxuav lub lens.